Tooth-shell slitter.



No. 657,633. Patented Sept. ll, I900. C. M. WILCUX.

TOOTH SHELL SLITTEB.

(Application filed Dec. 22, 1899.)

(No Model.)

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'Uninn STATES PATENT ()FFICE.

CHARLES M. WILOOX, OF NEW PARIS, OHIO.

TOOTH-SHELL SLITTER.

SPECIFICATION forming part of Letters Patent No. 657,633, dated September 1 1, 1900. Application filed December 22,1899. Serial No. 741,277. (No model.)

To aZZ whom it may concern.-

Be it known that 1, CHARLES lvLWILooX, a citizen of the United States, residing at New Paris, in the county of Preble and State of Ohio, have invented new and useful Improvements in Tooth-Shell Slitters, of which the following is a specification.

My invention relates to improved toothshell slitters adapted to be used on dental forceps and in connection therewith.

One object is to provide an attachment to be used in connection with dental forceps for slitting shells for the purpose of removing the shells from teeth quickly, easily, and economically. Another object is to provide a tooth-shell slitter that can be quickly and easily attached to the common type of dental forceps. Another object is to provide an attachment that will slit and loosen shells or caps from teeth quickly and easily without danger of crushing the teeth and reducing the damage to the shell to a minimum. Still another object is to provide a new article of manufacture in an attachment for slitting shells or caps on teeth that can be manufactured and sold at a very low price. I attain these objects by the arrangement and combination of parts clearly shown in the accompanying drawings, in which- Figure l is a sectional view of my unattached cutter. Fig. 2 is a View of the device attached to dental forceps and showing the device in the act of slitting a shell. Fig. 3 is a side view of the device attached to a pair of dental forceps, showing the manner of grasping the shell for the purpose of slitting same. Fig. at is a sectional view of a fulcrum, and Fig. 5 is a top view of same.

Similarletters refer to similar parts throughout the several views.

A represents the body of my cutter or slitter, formed to fit in the groove of the jaw H and the top portion to coincide with the outside curve of the jaw H as shown.

Bis a band permanently secured to or made a partof the body A, said band having an opening G of sufficient dimensions to receive the jaw H or H of the forceps. The upper part of the body A is provided with a slot D to receive a cutting-wheel C, said wheel being journaled in the forks formed in the upper extremity of the body A.

E represents a shell or cap attached to the tooth F, and H represents ordinary dental forceps.

It can be seen that my device consists, essentially, of but three parts-via, the body A, the band B, permanently attached thereto, and the cutting-wheel O.

My device is designed to be attached to the forceps by simply placing the point of the jaw H in the opening G and pressing the device down until it fits in place, as shown in Figs. 2 and 3. The device can instantly be changed from the jaw H to the jaw H.

In practice the device is placed on one of the jaws, as stated above, and then placed in the relation to the shell E, as shown in Fig. 3. The jaws H and H are now made to approach each other until the jaw H rests against one of the sides of the shell E and the cutting wheel O comes in contact with the opposite side of the shell. Now bya lmovementof the hand of the operator the handles H and H are moved to the left, which will cause the wheel O to revolve on the 'face of the shell, sufficient pressure being applied to cause the wheel to cut into and through the shell E, as shown in Fig. 2. When the shell is thus slitted, it is apparent that it can be easily removed from the tooth.

It is apparent that my device can also be attached to the jaw H and the operation reversed for slitting the other side of the shell, if desired.

The fulcrum, as shown in Figs. 4 and 5, can be attached to the forceps in the same manner as the slitter and can be attached to the forceps on the jaw opposite to the slitter, so that when the cutting-wheel O is in contact with one side of the shell the fulcrum will be in contact with the opposite side of the shell. I do not consider it essential to use the special fulcrum as shown; but there are occasions when I find it advisable to do so.

The invention is simple in construction, can be applied or used on ordinary forceps,

efficient and reliable in operation, and cheap of manufacture.

I am aware that changes in the form and proportion of parts and details of construction of the device herein shown and described as an embodiment of my invention can be made without departing from the spirit or operation of my invention, what I, claim as. new, and desire to secure by" Letters Patent of the United States, is-

1. In a device of the kind specified, thev body portion provided with means for securing the same to forceps, the upper end of the bod y being slotted, a cutting-wheel jonrnaled,

in the slot and adapted to revolve against the shells of teeth, all as described and for the purposes set forth.

2. In combination with a pair forceps, of a device to be I attached thereto,

of dental forthe purposes specified, of the body A, provided'withaband B at its lower end, a slot D at its upper end,'a cutting-wheel O, journaled in said sl'ot', all as described and set forth.

3. In atooth-shell slitter, in combination with a roller-cutter attached to one jaw of dental forceps, a fulcrum attached in like mannertothe. opposite jaw, all as described and specified.

In testimony whereof I have signed my ,name to this-specification in the presence of two subscribing Witnesses.

CHARLES M. WILCOX. Witnesses:

GEO. W. NIEDEBRAND, R. W. HANDLE. 

